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Byju's Answer
Standard XII
Biology
Purines
Purines found...
Question

Purines found both in DNA and RNA are

A
cytosine and thymine
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B
adenine and thymine
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C
adenine and guanine
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D
guanine and cytosine
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Solution

The correct option is C adenine and guanine
There are two types of nitrogenous bases in DNA – purines
(adenine and guanine), and pyrimidines (cytosine, uracil and thymine).
All the bases are common for both RNA and DNA except thymine is present only in DNA but RNA has uracil in place of thymine.

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Purines
Standard XII Biology
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